is this normal or should I be worried?

Taylor
I'm 18 weeks and this is my first pregnancy, I'm definitely a worrier and always scared something is wrong, today I have had weird pains in my lower stomach and now my hoo-ha hurts sooooo bad especially when I'm trying to sit in a chair or get up and down it's terrible. I know it's probably normal, I just want to make sure, you can never be too safe!